Protective head guard cap insert



FIG. 1 is a front perspective view of a protective head guard cap insert showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof (the right side view being a mirror image of the left side view);

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The details shown in broken lines form no part of the claimed design. 

The ornamental design for a protective head guard cap insert, as shown and described. 